[ARC5] Bendix Motor Generator

[Andy Young]

Hi Roy,

That's all very interesting!

The unit I've got here has never been used, it's still got its tie-on label 
and is in pristine condition.

I don't suppose we will ever know how it ended up in the UK!

It would be nice to get it running one day. Ironically what would be more 
use to me would be a similar machine generating 80v at 1600 c/s to run 
wartime-wra UK equipment such as GEE or H2S. I know someone here who does 
run such stuff at 800 c/s from a US generator, but it's just about on the 
limit for the equipment transformers.

I've emailed Steve Williams, kb4dmf, to ask if he can supply the right 
connectors.

Any extra info on the compensating capacitor would be most welcome, please.

Don't worry, I'll not be modifying, discarding or neglecting it!

Andy
----- Original Message ----- 
From: "Roy Morgan" <k1lky68 at gmail.com>
To: "Andy Young" <andy-young at supanet.com>
Cc: "ARC-5 List" <arc5 at mailman.qth.net>
Sent: Monday, April 13, 2015 2:14 PM
Subject: Re: [ARC5] Bendix Motor Generator



On Apr 13, 2015, at 6:02 AM, Andy Young <andy-young at supanet.com> wrote:

> Has anyone got any information on a US-made Motor Generator, purchased by 
> me here in the UK yesterday, please?
> It is a Bendix Aviation Eclipse Type 800, Model 1, Style D Motor 
> Generator.
> 24/28v DC in, at 75A, 115v AC 800 c/s out, at 10.5A, 1200W.
> What system was this used to supply?

Andy,

The 800-1 motor generator is a very rare item.  In the past, I was able to 
acquire just one of these things for my GO-9 transmitter.  Since then, none 
have been available.  The original source is long gone.

The GO-9 is a Westinghouse Navy transmitter that runs on 28 volts DC and 800 
cycles, single phase 115 volts AC.  The transmitter was used in larger 
aircraft such as the PBY.  It is NOT practical to rebuild the transmitter to 
use 60 cycle transformers.  A search for “GO-9 Transmitter” will likely find 
some information and pictures of the very few that have been restored to 
operation.

Mike Hanz has some info:
> I have some information on it on my website at 
> http://aafradio.org/docs/800-1.htm

It’s possible that I have additional information about the thing, and about 
the compensating capacitor device that was used with it.  When I can, I will 
look at Mike’s site and compare with the info I have here.  I’ll be happy to 
send you and Mike anything I have that’s not on Mike’s site.  (My internet 
connection is bad right now.  I have a Drop Box we can use to share this 
info.)

Some comments about the thing:

- It is a SCREAMER.   You will not be able to run it in the same room you 
are in.
- it certainly will need to be overhauled - bearings cleaned and lubricated. 
Do not run it until you have done this.
- it has a carbon pile regulator device that may need “encouragement” to run 
properly.
- The MS type connectors needed to hook it up are available but not very 
cheap.  The thing should not be modified to avoid using the correct 
connectors.
- It is VERY RARE and should not be discarded or neglected - if you won’t 
use it, then there are other folks who will, and will be extremely happy to 
get the thing.

Other than the one I have and one other that I know of, I have never heard 
of any being owned and used.

I will be very happy to help you find more information and to get it running 
if that’s what you decide to do.

Roy

Roy Morgan
k1lky68 at gmail.com
K1LKY Since 1958